Seat for vehicles

Claim 1

In a seat for vehicles wherein the seatback having two sides is divided into an upper part having an upper frame member and a lower part having a lower frame member, said upper frame member connected for inclination relative to said lower frame member, said lower frame member mounted for inclination on a seat frame, and seat further having a first reclining device fixed on one side thereof for adjusting the inclination of said lower seat frame forward and backward relative to said seat frame, the improvement comprising: a hinge bracket connecting said upper frame member to said lower frame at said one side corresponding to said first reclining device for one-way inclination in the forward direction, an arm fixed to the lower part of said upper frame member at the other side opposite said hinge bracket and extending therefrom for pivotal connection to an intermediate reclining device, an intermediate reclining device mounted on the upper part of said lower frame member on said other side for controlled forward inclination of said upper frame member in relation to said lower frame member, said arm pivotally connected to said intermediate reclining device for forward pivoting with respect thereto, and a manual operating mechanism fixed to the lower end of said lower frame for actuating said intermediate reclining device to permit free rotation of said upper frame in relation to said lower frame, whereby the degree of inclination between said upper frame member and said lower frame member can be selectively established by a seat occupant.