Walk-In and Folding Apparatus for Seat

A walk-in and folding apparatus for a seat, in which a recliner disposed between a seat back frame and a cushion frame is selectively released by a walk-in lever to permit folding action of the seat back, and a locking unit and the recliner are released by a folding lever to permit a walk-in action of the seat back frame, the apparatus comprising:

• a shaft rotatably mounted to the cushion frame and the seat back frame and being fastened to the recliner;
• a locking link rotatably coupled to the shaft and biased by a first elastic member, a first end portion of the locking link being connected to the locking unit via a first wire so as to, upon rotation of the locking link release a locked state of the locking unit to permit the seat to slide in one direction;
• and
• an actuating lever, one end portion of which is pivotally coupled to the seat back frame and biased toward the locking link by a second elastic member, and the other end portion of which includes a walk-in pin, the other end portion of the actuating lever being connected to the folding lever,
• wherein the walk-in pin is selectively engaged with the locking link according to operation of the folding lever such that, upon folding of the seat back frame with operation of the walk-in lever, the walk-in pin is engaged with the locking link to rotate the locking link to release the locked state of the locking unit, but, upon folding of the seat back frame with operation of the folding lever, the walk-in pin is disengaged from the locking link and the locking unit is unlocked such that the seat back frame can be folded with respect to the shaft and be movable in the one direction.