Patent ID: 8328284

Claim:
A collapsible chair having a seat, a pair of arms, a fold-down back that is rotatable between a locked vertical position standing upwardly from the seat and an unlocked horizontal position lying in generally face-to-face alignment with the seat, and a lock release assembly to control the rotation of said fold-down back, said lock release assembly comprising: a lock located at said fold-down back and being arranged in removable locking engagement with one of the pair of arms by which to hold the fold-down back in said locked vertical position; a push button located on said one arm, a manual pushing force applied to said push button causing said push button to move relative to said one arm from a first location to a second location to remove said lock from said removable locking engagement with said one arm, whereby to permit said fold-down back to rotate from its locked vertical position to its unlocked horizontal position, and a locking collar located at one side of the fold-down back of said collapsible chair, said lock being surrounded by and slidable through said locking collar so that said lock is removed from said locking engagement with said one arm when said push button moves from said first location to said second location, said lock including a locking pin projecting outwardly from said locking collar for said removable locking engagement with said one arm.