Sound insulation with multilayer fibre insulation; and method of manufacturing the same
AssigneeAdler Pelzer Holding GmbH
InventorsVolkmar Schulze, Reimund Piatkowski, Nora Jestel
Life of this patent
Estimating the term…
Abstract
Disclosed is a floor covering insulation for a motor vehicle with a multi-layer, preferably flocked, fibre insulation which, by a soft/smooth coupling layer to the wear surface, realises a sound insulation floor covering with improved acoustic and mechanical-physical properties, with a simultaneous reduction in weight if possible. Also disclosed is a process for manufacturing the sound insulation.
Claims20
A sound-insulating floor covering for a motor vehicle, which has an insulating device comprising fibres, wherein this insulating device extends along a longitudinal direction, a width direction and a thickness direction and wherein this insulation device has different acoustic and/or mechanical-physical properties in at least one of these directions, wherein this floor covering has a material structure which has at least one nonwoven element and at least one film element
- wherein
- the insulating device has a multilayer structure and at least one layer of this insulating device is selected from the group consisting of a flocked-layer with fibres, a layer containing fibres, and a foam layer, and this insulating device is connected to a wear surface of the insulating device and/or arranged thereon by a coupling layer, wherein the coupling layer has a compression hardness which is in a range between 0.2 kPa and 5 kPa.
A method for producing a sound-insulating floor covering with a multilayer flocked insulation device,
- wherein
- first a first and then a second layer is flocked in a flocking device, wherein the sequence of the material quality being selected in such a way that the layer which later faces the wear surface has a predetermined compression hardness in a range from 0.2 kPa to 5 kPa, and the other layer has a predetermined compression hardness in a range from 5 kPa to 30 kPa.
Dependencies are inferred from the claim text.