Patent ID: 7494186

Claim:
A folding recliner for folding and reclining a seat back of a seat of a vehicle, comprising: a lever unit, comprising: a lever pin provided at a first position; and a lever provided at a second position, so that, when the lever is rotated in a predetermined direction, the lever unit is rotated around a reclining shaft using a rotational force transmitted from the lever so that the seat back enters an unlocked state; a first link provided with a slot formed through an intermediate portion of the first link so that the first link is moved under guidance of a slot pin inserted into the slot, a contact part provided on a lower end of the first link so that a pushing force for an unlocking motion is transmitted from the lever pin of the lever unit, and a through hole formed through an upper end of the first link; a second link rotated around a rotating shaft, coupled to an intermediate portion of the second link, by movement of the first link, the second link rotatably coupled at a first end thereof to the through hole of the first link using a rotating pin, with a holding hole formed through a second end of the second link; a spring held at a first end thereof by the holding hole of the second link and held at a second end thereof by a frame unit, thus providing a restoring force to the second link so that the seat back enters a locked state; a cam rotated around the rotating shaft and having an arm part extending a predetermined length in a predetermined direction, with a locking protrusion provided on an end of the arm part; and a latch rotated around a folding shaft, and provided with a curved edge part formed at a first position on an outer edge of the latch so that the curved edge part contacts an upper end of the cam such that the seat back maintains an unfolded locked state thereof, and a locking notch formed at a second position in the outer edge of the latch so that the locking protrusion of the cam is locked to the locking notch such that the seat back maintains a folded locked state thereof.