Patent attributes
A locking apparatus includes a support bracket, a latch, a rotating member and a link unit. The support bracket is fastened to a headrest housing and has therein a locking slot, into which a striker of a seat back frame is removably inserted. The latch is coupled to the support bracket by a hinge and locks the striker, which is inserted into the locking slot of the support bracket, using rotation of the latch. The rotating member is coupled at a first end thereof to the support bracket by a hinge and is elastically coupled at a second end thereof to the latch, thus releasably locking the latch thereto. The link unit is coupled to the headrest housing by a hinge and is connected at one end thereof to the rotating member, such that the latch is released from the rotating member by pulling the rotating member.