Patent ID: 7520565

Claim:
A structure for improving performance of an active headrest comprising: a lumbar support plate which is installed within a seat back frame and supports the body of an occupant; a lumbar support interlocking wire which operates by being interlocked with the lumbar support plate and a link bracket which is disposed on the lumbar support interlocking wire and is rotated by the lumbar support interlocking wire so as to rotate a link connecting pipe which raises an active headrest pipe which is pivotally supported by the link bracket therebetween; and a stopper including a hook projection, the stopper disposed behind the active headrest pipe and affixed to an inner side of the seat back frame; and wherein the hooking projection supports a lower end portion of the active headrest pipe such that the active headrest pipe cannot go down at an operated position of the active headrest being formed in the stopper.