Integrated co-injection molded vehicle components and...

Details Integrated co-injection molded vehicle components and... Integrated co-injection molded vehicle components and...

2005-10-31

2009-12-15

Tucker, Philip C (Department: 1791)

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

To produce composite, plural part or multilayered article

C425S130000, C425S573000, C264S572000, C264S513000, C428S318800

Reexamination Certificate

active

07632445

ABSTRACT:
A vehicle bumper (20) integrates rigid and flexible components into a single co-injection molded structure. In a preferred embodiment, a flexible fascia (58) is provided with integrated rigid fastener brackets (62, 66, 70, 71), energy absorption structure and head lamp brackets and housings (62). A method for manufacturing such a bumper provides for the injection of two different plastic materials during the same molding process. The flexible plastic material first injected into the mold. Then, the rigid plastic material is injected at gates located where the rigid material is desired. In one embodiment, the rigid material is completely contained within the flexible material. The rigid material may be either a higher stiffness plastic or a fiber reinforced plastic.

REFERENCES:
patent: 5855840 (1999-01-01), Cucheran et al.
patent: 6998174 (2006-02-01), Porter et al.
patent: 2087299 (1982-05-01), None

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