Patent ID: 8602495
Filing Date: 2013-12-10
Classification: B60N

Abstract:
1. A fold-and-dive structure for a vehicle seat comprising: a connection member interconnecting a cushion frame of a seat cushion and a back frame of a seat back; a rotating link interconnecting a front end portion of the cushion frame and a support frame; a recliner provided on the support frame to which a lower end portion of the back frame is rotatably connected; and a guide frame is provided on a front side portion of the connection member; wherein the cushion frame is slidably coupled to the guide frame to make the seat cushion slide forward; wherein the cushion frame is locked and unlocked from the guide frame by a locking device; wherein the locking device comprises a locking portion locking the cushion frame in the guide frame, and a lever for releasing locking of the locking portion; wherein the locking portion comprises a fixing piece fixed to a side portion of the cushion frame, a locking ring rotatably hinge-fixed to the fixing piece and inserted into a side portion of the guide frame to make the cushion frame lock in the guide frame, and a spring providing an elastic force to the locking ring; wherein the locking ring releases the locking of the cushion frame as the locking ring is rotated about the fixing piece when the lever is operated; wherein the locking device comprises a bracket portion rotating the locking ring to release the locking of the cushion frame when the seat back is folded; wherein the bracket portion comprises a first bracket provided on one side of an upper surface of the cushion frame to be rotated when the back frame is folded, and a second bracket provided on the other side of the upper surface of the cushion frame and rotated by the first bracket to rotate the locking ring and to release the locking of the cushion frame; and wherein a lower end portion of the back frame and the first bracket are connected through a cable, and when the back frame is folded, the cable is pulled to rotate the first bracket.