A seatback-folding device for emergency escape for vehicles is equipped with a simply structured mechanism for emergency escape. A locking operation at the time of unfolding of a seatback of a second-row seat and an unlocking operation at the time of folding of the seatback of the second-row seat are performed by ascending/descending of a shaft caused by operation of a lever, thereby not only enabling an occupant sitting on a third-row seat to quickly fold the seatback of the second-row seat and thus to easily secure an emergency escape route, but also reducing the number of components, weight, the number of assembly processes, and manufacturing cost compared to a related art.

A walk-in device for a vehicle seat includes a rear link having one end connected to a seat cushion frame by a first hinge shaft, and the other end connected to an upper rail by a second hinge shaft, the rear link being capable of rotating in an unlocking direction about the second hinge shaft, and an unlocking device configured such that at least one bracket, which operates in conjunction with a rotational operation of the rear link, presses a locking pin in a state in which the bracket is elastically supported by an elastic member, such that an unlocked state is implemented.

A seatback-motion controller in accordance with the present disclosure is mounted on a vehicle seat in a vehicle. The vehicle seat includes a seat base and a seat back mounted for pivotable movement relative to the seat base between an upright use position and a forward-leaning easy-entry position.

A vehicle seat includes a stopping structure that stops forward tilting rotation of a seatback between the seatback and a base on a floor. The stopping structure includes a stopping portion provided on one of the seatback or the base, and a stopper that is provided in a state supported in a cantilevered manner on the other of the seatback or the base, and that extends to a position overlapping with the stopping portion in a seat width direction. The stopping structure is configured to stop the forward tilting rotation of the seatback by abutment of the stopping portion and the stopper. A deformation inhibiting member that minimizes deformation in the seat width direction from the stopper abutting against the stopping portion following forward tilting rotation of the seatback, is provided on the other of the seatback or the base.

An electric seatback-folding device for emergency escape enables a controller to accurately recognize whether a seatback (or a seatback frame) is in a locked state or an unlocked state using a microswitch. Folding of the seatback for emergency escape is smoothly performed without malfunction or a control error by operation of a motor in response to a current control signal of the controller.