Shock-absorbing inner lining
AssigneeRieter Automotive (International) AG
InventorEric Renault
Life of this patent
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Abstract
Liner (1) with a plurality of shock absorbing elements (7) being distributed over the entire surface, said shock abosrbing elements (7) being decoupled from the vehicle bottom (3) with the aid of a decoupling layer (9). Between these light-weight shock absorbing elements (7) a spring layer (8) is arranged, which interacts with a heavy layer (2) arranged on the passenger compartment side as an acoustically effective spring-mass-system. In a preferred embodiment of the invention, the spring layer (8) comprises an air spring. The shock absorbing elements (7) take up around 40% to 60% of the entire surface.
Claims11
Shock absorbing liner for motor vehicles, said liner (1) comprising a middle layer (4) with a multitude of shock absorbing elements (7), said elements (7) projecting into a spring layer (8), and said middle layer (4) comprising a heavy layer (2) on the side of a passenger compartment, and comprising a decoupling layer (9) on a vehicle bottom side at least in the areas of the shock absorbing elements (7), said decoupling layer (9) having a Young's module of <0.1 daN/cm.sup.2.
Dependencies are inferred from the claim text.