Foam in place urethane for structural headliners
View Patent ↗A method for forming a headliner assembly includes forming a main body blank having a periphery in a shape corresponding to a desired shape of the headliner assembly, the mold has a correspondingly shaped surface with a recess including an intermediate wall portion. The method includes introducing foam into the recess to simultaneously form at least one foam beam enclosing a selected component area, and join the at least one beam to the main body. The intermediate wall can be an accessory, and the beam may be formed to surround the component area. Additional foam application may be included to acoustically control the headliner's response to buzz, squeaks and rattles.
1. A method for forming a headliner comprising:
forming a main body by shaping a substrate blank with a shape;
positioning said blank in a mold having at least one mold surface conforming to said shape and said mold surface having a recess including an intermediate wall partitioning a portion of the recess;
closing the at least one mold surface against said blank; and
introducing foam into said recess to form a foam beam with a component area at said portion and to join said foam beam to said blank.
2. The invention as described in claim 1 wherein said positioning comprises enclosing a component location on said blank within said recess.
3. The invention as described in claim 2 wherein said enclosing comprises diverging channels in the mold half to form said recess about said component location.
4. The invention as described in claim 1 wherein said positioning comprises including a component position area.
5. The invention as described in claim 4 wherein said enclosing comprises surrounding a component position area.
6. The invention as describer in claim 1 wherein said intermediate wall is a vehicle accessory to be at least partially embedded.
7. A method for forming a headliner comprising:
forming a main body by shaping a substrate blank with a shape;
positioning said blank in a mold having at least one mold surface conforming to said shape and said mold surface having a recess extending across a major dimension of said shaping;
applying a component in alignment with at least a portion of said recess to one of said substrate and a surface of said mold recess;
closing the at least one mold surface against said blank; and
injecting foam into said recess to form a foam beam and embedding said component at said portion of said recess, and joining said foam beam to said blank.
8. The invention as described in claim 7 wherein said applying a component includes aligning said component in a predetermined location in said recess.
9. The invention as described in claim 8 wherein said location includes alignment pins and aligning comprises engaging said component against said alignment pins.
10. The invention as described in claim 7 wherein said component is a wiring harness.
11. The invention as described in claim 7 wherein said component is a hose.
12. The invention as described in claim 7 wherein said applying comprises attaching a component to said substrate.
13. A method for forming a headliner comprising:
forming a main body by shaping a substrate blank with a shape;
positioning said blank in a mold having at least one mold surface conforming to said shape and having a first recess extending across a major dimension of said shaping, and at least one second recess;
closing the at least one mold surface against said blank;
injecting foam into said recess extending across said major dimension to form a foam beam and to join said foam beam to said blank; and
injecting an acoustic foam into said at least one second recess to form a foam pad in contact with said substrate.
14. The invention as described in claim 13 wherein said second recess is independent of said first recess and injecting a flexible foam is said injecting acoustic foam step.
15. The invention as described in claim 14 wherein said at least one second recess is in fluid communication with said first recess.
16. A method for forming a headliner comprising:
forming a main body by shaping a substrate blank with a shape;
positioning said blank in a mold having at least one mold surface conforming to said shape and having a recess extending across a dimension of said shaping;
applying a component in alignment with at least a portion of said recess to one of said substrate and a surface of said mold recess;
closing the at least one mold surface against said blank; and
injecting foam into said recess to form a foam beam and embedding said component at said portion of said recess, and joining said foam beam to said blank, wherein said applying a component includes aligning said component in a predetermined location in said recess, wherein said location includes alignment pins and aligning comprises engaging said component against said alignment pins.