Acoustically effective rear parcel shelf
AssigneeRieter Automotive (International) AG
InventorsThorsten Alts, Jean Casulli, Claude Buisson
Life of this patent
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Abstract
The invention relates to a component part, especially a rear parcel shelf, and to a method for the production thereof, whereby the component part is provided with a honeycomb-like core layer (2) which is provided with a reinforcing layer (3, 4) on each side. This layer comprises a nonwoven that contains thermoplastic fibers. The core layer (2) is made of thermoplastic material and is connected to the thermoplastic fibers of the reinforcing layer (3, 4) b material fit. The reinforcing layer (3, 4) is precompressed and air permeable and has an air flow resistance ranging from 500 Nsm−3<R<3500 Nsm−3.
Claims13
A component part, in particular a rear parcel shelf, having a honeycomb core layer (2), which is provided on both sides with a reinforcing layer (3, 4) made of fibrous material, wherein the reinforcing layer (3, 4) comprises a nonwoven having thermoplastic fibers, the core layer (2) is made of a thermoplastic material and is materially bonded with the thermoplastic fibers of the reinforcing layer (3, 4), the reinforcing layer (3, 4) is precompressed, is air permeable and has an air flow resistance in the range of 500 Nsm−3<R<3500 Nsm−3.
Method for producing a component part, in particular a rear parcel shelf, wherein a stack (11) having at least the following succession of layers is provided:
- a first precompressed, air permeable reinforcing layer (4) made of a fibrous nonwoven having thermoplastic fibers;
- a honeycomb core layer (2) made of a thermoplastic material;
- a second precompressed, air permeable reinforcing layer (3) made of a fibrous nonwoven having thermoplastic fibers;
- in a next method step, said stack being heated between heatable plates (12, 13), in order to soften the reinforcing layers (3, 4) and the honeycomb core layer (2) in their bonding regions;
- and
- in a next method step said stack (11) being transferred into a cold moulding tool (14) and being brought into its desired form.
Dependencies are inferred from the claim text.