Cushion production for motor vehicle seat, comprises disposing porous coating, air distribution layer and separation layers at mold tank, introducing studs into perforations, flowing mixture in the tank and placing the lid on the tank

摘要

Central and peripheral parts (21a, 21b) of intermediate framework are disposed on the tank/lid (19) and the studs are introduced to the central and peripheral perforations for ensuring a tight contact between the wall of the studs and the perforations. The lid is disposed on the tank (18) to close the mold and to form molding cavity. The mold is opened after expansion of the foam and the intermediary framework is removed and the cushion is removed from the mold. The mixture is flown in the tank to form molding cavity. The legs is longitudinally extended and arranged to lead to molding of a canal system connecting holes. The distribution layer and the separation layer are peripherally stitched. The cushion comprises a foam body equipped with a porous coating and transverse holes, a distribution layer of air extending between the coating, a separation layer is formed between the foam body and the distribution layer, and the separation layer is equipped with perforations extending in the holes direction. The mould comprises a tank, a lid and intermediate framework. The intermediate framework comprises central and peripheral parts having central and peripheral legs supporting the studs. The molding parts of the legs and studs of an insulation film are covered. A film or a body structure is associated with the foam body opposed to the coating, the distribution layer and separation layer to form an air collector connecting several holes between the layers. A compression resistant porous filler element is disposed in the channels of the air collector before the association of the body structure. An independent claimS are included for: (1) Mold for implementing the production of the cushion; and (2) cushion for forming the a motor vehicle seat.