Foam laminate for mold in place seating component

• US 6,890,462 B2
• Filed: 06/06/2002
• Issued: 05/10/2005
• Est. Priority Date: 06/06/2002
• Status: Expired due to Fees

• Current Assignee: Foamex Innovations Operating Company
• Original Assignee: Foamex LP (FXI Holdings Incorporated)
• Inventors: Thompson, Andrew M., Panczyk, Michael H., Meyer, Richard C., Haslanger, Paul
• Primary Examiner(s): Kuhns, Allan R.
• Application Number:
  US10/164,352
• Publication Number:
  US 20030228455A1
• Time in Patent Office: 1,069 Days
• Field of Search: 264/46.4, 264/46.6, 264/46.8
• US Class Current: 264/46.8
• CPC Class Codes: B29C 44/1209 by impregnating a preformed part, e.g. a porous lining
• CPC Class Codes: B29C 44/145 the lining being a laminate
• CPC Class Codes: Y10T 156/1031 with preshaping of lamina
• CPC Class Codes: Y10T 428/249953 Composite having voids in a component [e.g., porous, cellular, etc.]

Abstract

A laminate structure for making a cushioned component for a vehicle interior, such as a seat cushion or head rest, has a high density foam bonded to an interior surface of a seat cover material. After the laminate structure is formed into a desired shape for the cushioned component, it is inserted into a vacuum mold having a mold surface with a shape corresponding with a desired exterior surface shape of the cushioned component. Liquid foam-forming material is injected into the laminate structure within the mold and allowed to cure to form the cushioned component. The high density foam of the laminate structure preferably has a density of at least 4 lbs/ft³ and an air permeability of 5 to 100 ft³/ft² minute. This high density foam may be created by felting a polyurethane foam.

Claims

1. In a method of making a cushioned component including the steps of(a) providing a cover having an exterior surface which is to present the major exterior appearance of the cushioned component;

(b) placing the cover within a mold so that the exterior surface of the cover is facing a mold surface of the mold having a shape corresponding with the desired exterior surface shape of the cushioned component;

(c) introducing a foamable material into the mold while the cover is within the mold; and

(d) curing the foamable material as said cover is held within the mold, wherein the improvement comprises;

(e) laminating a high density foam sheet having a density of at least 4 lbs/ft³ to the interior surface of the material forming the cover prior to placing the cover into the vacuum mold, wherein the high density foam sheet has an air permeability of from 5 to 100 ft³/ft² minute.

2. The method of claim 1, wherein the high density foam has a density of from 4 lbs/ft³ to 15 lbs/ft³.

3. The method of claim 1, wherein the high density foam has a density of from 5 to 10 lbs/ft³.

4. The method of claim 1, wherein the high density foam is a polyurethane foam.

5. The method of claim 1, wherein the high density foam is created by felting.

6. The method of claim 1, wherein the high density foam has a 25% CFD in the range of 1.0 to 8.0 psi.

7. The method of claim 1, wherein the high density foam has a 25% CFD in the range of 2.0 to 8.0 psi.

8. The method of claim 1, wherein the cushioned component is selected from the group consisting of:

seat back, seat cushion, head rest and arm rest.

9. The method of claim 1, further comprising:

(f) applying a vacuum to the mold so as to draw the exterior surface of the cover into conformity with the mold surface of the mold having said shape corresponding to the desired exterior surface shape of the cover so that said cover is brought generally into conformity with its desired shape.

10. The method of claim 1, wherein the cover is formed from a material that is perforate between the interior and exterior surfaces thereof.

11. The method of claim 1, wherein the cover is formed from a material selected from the group consisting of:

upholstery fabrics, vinyl and leather, and combinations thereof.

12. The method of claim 1, wherein the foamable material is introduced into the mold before the mold is closed.

13. The method of claim 1, wherein the formable material is introduced into the mold after the mold is closed.