Vehicle seat assembly with interlocking layered seating system

• US 8,215,714 B2
• Filed: 05/17/2010
• Issued: 07/10/2012
• Est. Priority Date: 05/17/2010
• Status: Active Grant

• Current Assignee: Lear Corporation
• Original Assignee: Lear Corporation
• Inventors: Galbreath, Ashford A., Ali, Asad S.
• Primary Examiner(s): White, Rodney B
• Application Number:
  US12/781,401
• Publication Number:
  US 20110278902A1
• Time in Patent Office: 785 Days
• Field of Search: 297/452.27, 297/452.48
• US Class Current: 297/452.27
• CPC Class Codes: B29C 44/1214 Anchoring by foaming into a preformed part, e.g. by penetrating through holes anchoring by moulding in general B29C37/0078; outsert moulding B29C45/14344, B29C70/74
• CPC Class Codes: B29C 44/1219 Foaming between a movable mould part and the preformed part
• CPC Class Codes: B29C 44/5681 Covering the foamed object with, e.g. a lining
• CPC Class Codes: B29K 2023/12 PP, i.e. polypropylene
• CPC Class Codes: B29K 2075/00 Use of PU, i.e. polyureas or polyurethanes or derivatives thereof, as moulding material
• CPC Class Codes: B29L 2031/58 Upholstery or cushions, e.g. vehicle upholstery or interior padding mattresses, cushions B29L2031/751
• CPC Class Codes: B29L 2031/771 Seats
• CPC Class Codes: B60N 2/70 Upholstery springs ; Upholstery
• CPC Class Codes: B60N 2/7017 characterised by the manufacturing process; manufacturing upholstery or upholstery springs not otherwise provided for

Abstract

A vehicle seat transitional composite with a structural reinforcement member adapted to be mounted within a vehicle seat to provide support to an occupant. The structural reinforcement member has at least two edge regions and an inner region at least partially bound within the at least two edge regions. The at least two edge regions have a plurality of keying apertures. A compliant layer is adjacent to the structural reinforcement member and has a plurality of projections sized to be received within the plurality of keying apertures of the structural reinforcement member for minimizing lateral movement of the compliant layer relative to the structural reinforcement member.

Claims

1. A vehicle seat transitional composite positioned between a seat frame and a cover, the transitional composite comprising:

at least one structural reinforcement member adapted to be mounted within a vehicle seat to provide support to an occupant, the structural reinforcement member having at least two keying apertures that extend there through; and

a compliant layer situated in interlocking cooperation with the at least one structural reinforcement member, the compliant layer having a plurality of projections sized to be received within the at least two keying apertures of the structural reinforcement member for minimizing lateral movement of the compliant layer in relation to the structural reinforcement member;

wherein one of the at least one structural reinforcement members has a lower face that lies toward the seat frame, an upper face that lies toward the cover, an aft region, an intermediate region and a forward stabilizer region, the at least two keying apertures extending between the upper and lower faces of the structural reinforcement member;

wherein the plurality of projections of the compliant layer are received at least partially within the at least two keying apertures of the structural reinforcement member, and

wherein one structural reinforcement member has an inwardly extending curvilinear stabilizer supporting region proximate the forward stabilizer region.

2. The vehicle seat transitional composite of claim 1 wherein at least some of the at least two keying apertures of the at least one structural reinforcement member have a cross sectional configuration selected from the group consisting of a circle, an ellipse, an oval, a polygon and combinations thereof.

3. The vehicle seat transitional composite of claim 2 wherein the plurality of projections have an average length of at least five millimeters.

4. The vehicle seat transitional composite of claim 1 wherein the at least two keying apertures have an average cross section of at least five millimeters in diameter.

5. The vehicle seat transitional composite of claim 1 wherein the seat has inboard and outboard edge regions, the at least one structural reinforcement member being positioned adjacent to the inboard and outboard edge regions.

6. The vehicle seat transitional composite of claim 1 wherein one structural reinforcement member has a stiffness or hardness greater than that of the compliant layer.

7. The vehicle seat transitional composite of claim 1 wherein the plurality of projections are retained within the at least two keying apertures with an interference fit.

8. A vehicle seat transitional composite comprising:

a structural reinforcement member adapted to be mounted within a vehicle seat to provide support to an occupant, the structural reinforcement member having at least two edge regions and an inner region provided between the at least two edge regions, the at least two edge regions having at least one keying aperture formed therein; and

a compliant layer provided adjacent to the structural reinforcement member, the compliant layer having at least one interlocking projection sized to be received within the at least one keying aperture of the structural reinforcement member for minimizing lateral movement of the compliant layer relative to the structural reinforcement member proximate the edge regions.

9. The vehicle seat transitional composite of claim 8 wherein the structural reinforcement member further comprises foam-in-place mechanically interlocking projections from the compliant layer.

10. The vehicle seat transitional composite of claim 8 wherein one interlocking projection includes a shoulder portion, a neck and a head portion, the head portion having an average diameter that exceeds that of the neck.

11. The vehicle seat transitional composite of claim 10 wherein one of the keying apertures of the structural reinforcement member includes an annular recess adjacent a bottom surface thereof, so that the head portion of the projection is seated in the annular recess following flow of the compliant layer through the keying aperture in an in-molding step.