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AssigneeGeneral Motors Corporation
InventorsIsmat A. Abu-Isa, Elio Eusebi, Craig B. Jaynes, Susan C. Moran, Michael A. Roy
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A vehicle seat suspension has a thin high strength elastomeric membrane. The membrane is formed from block copolymer material by a process in which a sheet is extruded and tensioned to orient molecules in a select direction with respect to the membrane; the oriented membrane is annealed to retain the orientation during cyclical deformation of the membrane. The sheet form membrane is adapted to be connected with respect to a vehicle seat assembly frame and to serve as a backing for foam seating material and wherein the oriented structure of the membrane provides a two stage modulus in the direction of the orientation for providing static and dynamic load support characteristics which impart passenger comfort without increasing the weight of a seat assembly.
In a vehicle seat assembly having a seat frame with a seat thereon and a back assembly extending generally vertically with respect to the seat frame the improvement comprising:
In a vehicle seat suspension including an interface between a frame of a vehicle seat assembly and a layer of foam material for defining a support for accommodating the shape of a passenger at a first modulus of elasticity and for supporting road impact imposed loads at a second modulus of elasticity greater than the first modulus of elasticity the improvement comprising:
Dependencies are inferred from the claim text.