Method for manufacturing a vehicle seat cushion assembly

• US 8,584,333 B2
• Filed: 01/25/2012
• Issued: 11/19/2013
• Est. Priority Date: 01/25/2012
• Status: Active Grant

• Current Assignee: Lear Corporation
• Original Assignee: Lear Corporation
• Inventors: Marqus, Jos, Chartrain, Jean-Marie
• Primary Examiner(s): COZART, JERMIE E
• Application Number:
  US13/357,906
• Publication Number:
  US 20130187432A1
• Time in Patent Office: 664 Days
• Field of Search: 29/91, 29/911, 29/915, 297/452.21, 297/452.48, 297/452.58, 112/475.01, 112/475.08
• US Class Current: 29/91
• CPC Class Codes: B60N 2/5883 by sewing, stitching or threading
• CPC Class Codes: B60N 2/5891 characterised by the manufacturing process; manufacturing seat coverings not otherwise provided for
• CPC Class Codes: B60N 2/70 Upholstery springs ; Upholstery
• CPC Class Codes: Y10T 29/48 Upholstered article making
• CPC Class Codes: Y10T 29/481 Method

Abstract

A method for manufacturing a vehicle seat cushion assembly includes providing a first material to define an outer seating surface. A second material is sewn to the first material using first and second sewing lines disposed generally parallel to each other. A wadding material is disposed between the first and second materials and between the first and second sewing lines, and additional wadding material is disposed between the first and second materials adjacent to and not between the first and second sewing lines. The first and second materials are further sewn together using two additional sewing lines respectively disposed adjacent edges of the additional wadding material opposite the first and second sewing lines.

Claims

1. A method for manufacturing a vehicle seat cushion assembly, comprising:

providing a first material to define an outer seating surface;

sewing a second material to the first material using first and second sewing lines generally parallel to each other;

disposing a wadding material between the first and second materials and between the first and second sewing lines;

disposing additional wadding material between the first and second materials adjacent to and not between the first and second sewing lines; and

sewing the first and second materials together using two additional sewing lines respectively disposed adjacent edges of the additional wadding material opposite the first and second sewing lines thereby at least partially forming said vehicle seat cushion assembly.

2. The method of claim 1, further comprising sewing the first and second materials together with sewing lines generally perpendicular to the first and second sewing lines.

3. The method of claim 1, further comprising attaching a hook and loop fastener to an outer surface of the second material.

4. The method of claim 1, wherein the first material is leather and the second material is a woven tulle.

5. The method of claim 1, wherein the first and second materials have generally parallel perimeters with at least six generally linear segments.

6. The method of claim 1, wherein the wadding material is a foam comprising at least one of a urethane material or a bio-based material.

7. The method of claim 1, wherein the additional wadding material includes two pieces of wadding material, each of which has a perimeter with at least five generally linear segments.

8. The method of claim 7, wherein the two additional sewing lines each include two generally linear segments generally parallel to respective edges of the two pieces of wadding material.

9. A method for manufacturing a vehicle seat cushion assembly, comprising:

providing a first non-rectangular material to define an outer seating surface;

providing a second non-rectangular material having a perimeter generally parallel to a perimeter of the first material;

sewing the second material to the first material using two generally parallel sewing lines, thereby defining an interior space between the first and second materials;

disposing a first amount of wadding material in the interior space;

disposing a second amount of wadding material between the first and second materials adjacent one of the two generally parallel sewing lines;

disposing a third amount of wadding material between the first and second materials adjacent the other one of the two generally parallel sewing lines; and

sewing the first and second materials together using two additional sewing lines respectively disposed adjacent edges of the second and third amounts of wadding material opposite the interior space thereby at least partially forming said vehicle seat cushion assembly.

10. The method of claim 9, further comprising sewing the first and second materials together with sewing lines generally perpendicular to the two generally parallel sewing lines.

11. The method of claim 10, further comprising attaching a hook and loop fastener to an outer surface of the second material.

12. The method of claim 9, wherein the first material is leather and the second material is a woven tulle.

13. The method of claim 9, wherein the first and second materials have generally parallel perimeters with at least six generally linear segments.

14. The method of claim 9, wherein the amounts of wadding material comprise at least one of a urethane foam or a bio-based based foam.

15. The method of claim 9, wherein each of the second and third amounts of wadding material has a perimeter with at least five generally linear segments.

16. The method of claim 15, wherein the two additional sewing lines each include two generally linear segments generally parallel to respective edges of the second and third amounts of wadding material.