Forming of a stitch in a motor vehicle seat cover

• US 10,259,361 B2
• Filed: 05/26/2016
• Issued: 04/16/2019
• Est. Priority Date: 09/17/2015
• Status: Active Grant

• Current Assignee: Faurecia Sieges D'Automobile (Stellantis NV)
• Original Assignee: Faurecia Sieges D'Automobile (Stellantis NV)
• Inventors: Bourde, Philippe, Fouinat, Didier, Rigal, Olivier, Mailliez, Francois
• Primary Examiner(s): Brindley, Timothy J
• Application Number:
  US15/165,745
• Publication Number:
  US 20170080839A1
• Time in Patent Office: 1,055 Days
• Field of Search: 112 61, 112 85, 112235, 112240, 112244, 11247502, 11247503, 11247522, 11247526
• CPC Class Codes: B32B 2605/00 Vehicles
• CPC Class Codes: B32B 2605/003 Interior finishings
• CPC Class Codes: B32B 2605/08 Cars
• CPC Class Codes: B32B 7/00 Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
• 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 2/7017 characterised by the manufacturing process; manufacturing upholstery or upholstery springs not otherwise provided for

Abstract

A method of forming a stitch in a motor vehicle seat cover piece, including a foam layer and a lining material defining the apparent surface of the cover, wherein a groove formed on molding of the cover piece defines the pattern of the stitch and is used as a guide.

Claims

1. A method of forming a stitch in a motor vehicle seat cover piece, comprising:

forming, upon molding of a foam layer and a lining material defining an apparent surface of the cover, a groove of the cover piece that defines a pattern of the stitch, wherein the groove is configured to have a width that facilitates engagement with a component of a sewing machine; and

forming the stitch in the groove of the cover piece using the groove as a guide for the component of the sewing machine.

2. The method of claim 1, wherein the groove is formed on a side of the lining material.

3. The method of claim 2, wherein the groove is used as a guide for a sewing machine foot.

4. The method of claim 3, wherein he groove is used as a guide for feed dogs of the sewing machine.

5. The method of claim 1, wherein the groove is formed on a side of the foam layer.

6. The method of claim 1, wherein the groove is used as a guide for a sewing machine gauge.

7. The method of claim 6, wherein the gauge is deposited on a side of a foot opposite to a needle.

8. The method of claim 1, wherein the stitch is decorative.

9. A cover for a motor vehicle seat, comprising at least one piece provided with a groove having a stitch formed therein in accordance with the method of claim 1.

10. The method of claim 1, wherein forming the groove of the cover further comprises cold forming of foam arranged on a reverse side of the lining material.

11. A motor vehicle seat element, comprising:

a foam support block; and

the cover of claim 9.

12. A motor vehicle seat comprising at least one seat element of claim 11.

13. The method of claim 1, wherein forming the groove further comprises forming the groove to have a V-shape.