Patent ID: 8801104
Filing Date: 2014-08-12
Classification: B60N

Abstract:
1. A seat portion of a vehicle seat comprising: padding; upholstery over at least part of said padding, defining a user supporting surface, and permeable to air at least when the user is seated; a number of chambers which are located inside said padding, extend along parallel axes crosswise to said supporting surface and are open at opposite axial ends; a plurality of openings defining respective air inlets/outlets communicating with the bottom ends of said chambers; and valve means for operation by compression and decompression of the air in said chambers for automatically opening and closing said openings; the volumes of said chambers varying in response to oscillating movements of the user, so that the air in the chambers is compressed and aspirated cyclically to produce a natural pumping effect which circulates air through the supporting body, wherein said chambers are grouped into at least four groups, which are located, respectively, in front right, front left, rear right, and rear left position; the chambers of each group are isolated in fluidtight manner from the chambers of the other groups; the chambers of each group communicate, respectively, with at least one of said openings by a respective manifold; the opening of each group is associated with a respective valve, which operates independently from the valves of the other groups.