Patent ID: 7331628

Claim:
A folding chair with safety folding device comprising a pair of front legs, a pair of rear legs, a front crossbar, a rear crossbar, a pivotal shaft, a back, a safety book, a pin, a torsion spring, a bottom cover, and a seat; wherein the front crossbar is attached to a lower portion of the front legs; wherein the rear crossbar is attached to a lower portion of the rear legs; wherein the pivotal shaft connects one of the pair of front legs to a corresponding one of the pair of rear legs; wherein the back is located at a top of the front legs; wherein the safety hook is employed to position the pair of rear legs after the folding chair is unfolded, and when the folding chair is being folded, the pair of rear legs can be released safely by pressing the safety hook, thus preventing an undesired pinching injury as a result of improper operation or impact; wherein the safety hook is a J-shaped unitary structure and is formed at a front end thereof with an arc retaining portion; wherein a pivotal hole is formed at a mid portion of the safety hook for insertion of the pin; wherein a press board is formed at a rear portion of the safety hook to be pressed by a user; wherein the pin is a cylinder to be inserted in the pivotal hole, and both ends of the pin are located in the bottom cover; and wherein the torsion spring is mounted on the pin; and wherein the bottom cover is a U-shaped piece mounted to a bottom of the seat and is formed at a front portion thereof with a slot, and both ends of the bottom cover are folded to form a flange connected to the bottom of the seat of the folding chair.