Patent ID: 9669735
Date: 2017-06-06
CPC Classifications: A47C,B60N

Claim:
1. A seat for vehicles, comprising a backrest part with a support frame and a lining; a seat part; and a chassis to which the support frame of the backrest part is firmly attached and to which the seat part is attached such that the seat part can shift forward or backward, the backrest part being provided with a rotating vane between the support frame and the lining, with an upper end attached in an articulated manner to the support frame or to the chassis and with a lower end mechanically linked to the seat part by a slide and a thrust pin slidably inserted in the slide; the seat part is mechanically linked to the chassis by a set of tracks or guides and corresponding runners or pins guiding the forward or backward shifting of the seat part with respect to the chassis, the vane being arranged centered on the support frame, leaving respective side bands of the frame to which respective facing side bands of the lining are attached accessible on both sides of the vane, such that the rotation of the vane with respect to the frame or the chassis modifies a profile of the lining in the area covering the vane, the lining adopting a bridge cross-section wherein the lining is attached by the side bands of the lining to the frame and separated from the frame at a central portion of the lining; wherein when the vane is rotated so that the profile of the lining corresponding to a lower lumbar area of the backrest extends forward in a direction of a front of the seat, the seat part shifts forward in the direction of the front of the seat; and wherein the slide comprises an open end that allows extraction of the corresponding thrust pin, giving rise to a separable attachment between the backrest part and the seat part.