For convenience system backs, with a reduced pur - volume and an environmentally friendly design

摘要

A cushion, - holding cup for a vehicle seat contains a molded synthetic resin layer, which an upper side, a lower side, a first lateral side, and a second lateral side defined when the backrests - holding cup is positioned in a vehicle seat. The shaped synthetic resin layer has a convex section and a not - convex section, wherein the convex section below the not - convex portion is arranged, when the backrests - holding cup is positioned in a vehicle seat.