| US 7,524,389 B2 | ||
| Process for producing a composite body part for a motor vehicle | ||
| Norbert Elbs, Munich (Germany); Manfred Hoeller, Munich (Germany); Bernd Schleicher, Munich (Germany); Thomas Stemmer, Munich (Germany); Wolfgang Wagner, Munich (Germany); Matthias Dichtl, Eurasburg (Germany); Frank Kiesewetter, Germering (Germany); and Ralf Schwaighoffe, Neubeuern (Germany) | ||
| Assigned to Webasto AG, Stockdorf (Germany) | ||
| Filed on Apr. 28, 2005, as Appl. No. 11/116,213. | ||
| Claims priority of application No. 10 2004 021 337 (DE), filed on Apr. 30, 2004. | ||
| Prior Publication US 2005/0242469 A1, Nov. 03, 2005 | ||
| Int. Cl. B29C 45/14 (2006.01) | ||
| U.S. Cl. 156—242 [156/285; 264/275; 264/279] | 14 Claims |
| 1. Process for producing a composite body part for a motor vehicle in a tool which comprises a first tool part and a second
tool part which are movable relative to one another and which together form a mold cavity, comprising the steps of:
inserting an outer skin into the first tool part with a peripheral edge of the outer skin spaced inward of a peripheral edge
portion of the mold cavity defined by the first tool part, and placing at least part of a peripheral edge area of a side of
the outer skin facing the first tool part that is located inward of said peripheral edge into sealing contact with a seal
arrangement comprising a pair of seals formed of a permanently elastic material which is provided in the first tool part,
producing a negative pressure between the first tool part and the outer skin in the area between the pair of seals of the
seal arrangement so as to produce said sealing contact of the outer skin with the seal arrangement,
applying a plastic material to a side of the outer skin which faces away from the first tool part and extending within the
mold cavity beyond and around said peripheral edge,
shaping the plastic material by applying pressure by means of the second tool part, and
releasing the composite body part produced from the seal arrangement by applying positive pressure between the pair of seals
and removing it from the tool.
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