Claims
- 1. A sound-absorbing self-supporting roof-liner for the sheet metal roofs of automotive vehicles comprising a support layer having covering layers on each of its two outer faces, at least one said covering layer being permeable to air, the support layer being an open-cell honeycomb structure of impregnated cardboard or craft paper with cells extending substantially traversely to the faces, a said air permeable layer comprising a nonwoven resin-bonded fibrous felt, one said layer being a decorative layer of textile material or porous PVC foil, said support layer together with its covering layers moulded to the contours of the sheet metal of a vehicle roof and compacted and shaped to less than the support layer thickness over a considerable part of its surface area thereby to conform to the functional shape of the surface facing the passenger compartment.
- 2. A sound-absorbing self-supporting roof-liner according to claim 1, wherein the edge the support layer is completely compacted.
- 3. A sound-absorbing self-supporting roof-liner according to claim 1, and in combination therewith, an automobile roof formed of a plate, said automobile roof being of contoured, non-planar configuration, said roof-liner bonded thereto, whereby to dampen noise-producing bending oscillations of the roof plate and to absorb sound generated within the automobile.
Parent Case Info
This application is a continuation of application Ser. No. 267,733, filed May 28, 1981, now abandoned.
US Referenced Citations (9)
Foreign Referenced Citations (3)
Number |
Date |
Country |
675790 |
Jul 1952 |
GBX |
803065 |
Oct 1958 |
GBX |
952836 |
Mar 1964 |
GBX |
Continuations (1)
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Number |
Date |
Country |
Parent |
267733 |
May 1981 |
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