Cushion body structure of a car seat

• US 5,702,159 A
• Filed: 06/09/1995
• Issued: 12/30/1997
• Est. Priority Date: 09/19/1993
• Status: Expired due to Fees

• Current Assignee: Chikara Matsuoka, Kunihisa Wakimoto, Takeshi Watadani, Yukihiro Kinoshita
• Original Assignee: Chikara Matsuoka, Kunihisa Wakimoto, Takeshi Watadani, Yukihiro Kinoshita
• Inventors: Kinoshita, Yukihiro, Watadani, Takeshi, Wakimoto, Kunihisa, Matsuoka, Chikara
• Primary Examiner(s): Nelson, Jr., Milton
• Application Number:
  US08/446,596
• Time in Patent Office: 935 Days
• Field of Search: 297/452.58, 297/452.57, 297/DIG. 1, 297/DIG. 2, 297/452.23, 297/452.24, 297/452.26, 297/452.25, 297/452.27, 297/218.2, 297/DIG. 6, 297/452.48, 264/45.1, 264/46.4, 156/245, 156/212, 156/213
• US Class Current: 297/452.48
• CPC Class Codes: A47C 7/18 having foamed material included in cushioning part foamed material mattresses A47C27/14
• CPC Class Codes: B29C 44/086 and feeding more material into the enlarged cavity
• CPC Class Codes: B29C 44/16 shaped by the expansion of the material
• CPC Class Codes: B60N 2/58 Seat coverings
• CPC Class Codes: B60N 2/5875 by adhesion, e.g. gluing
• CPC Class Codes: B60N 2/7017 characterised by the manufacturing process; manufacturing upholstery or upholstery springs not otherwise provided for
• CPC Class Codes: Y10S 297/01 Foam
• CPC Class Codes: Y10S 297/02 Molded

Abstract

A cushion body (10) for forming a car seat, which facilitates attachment of a skin material (15) to a cushion material (11).

The cushion body (10) is made by attaching a planar fastening body (12) in a cushion material molding die (20) and unifying with the cushion material (11) along a three-dimensional curved surface shape of an interior surface of the die by an internal foamed molding pressure of the cushion material (11). The planar fastening body (12) is made of a planar fastening material (13) connecting with a supporting material (14) which is basically the same composition as the cushion material (11).

Claims

1. A vehicular seat cushion comprising, a cushioning material having a seating surface with a center portion and rising side portions to either side of said center portion, said center portion of said seating surface having a three-dimensional curved surface, a fastener body having an under surface affixed to said center portion of said seating surface and an upper surface duplicating said three-dimensional curved surface of said center portion of said seating surface, said upper surface of said fastener body having a plurality of fasteners disposed thereon, and a surface material covering said cushioning material and attached to said plurality of fasteners, whereby said surface material assumes said three-dimensional curved surface of said seating surface.

2. A vehicular seat cushion according to claim 1, wherein said surface material has a suture at substantially the juncture between said rising side portions of said seating surface and said fastener body.

3. A vehicular seat cushion according to claim 1, wherein said fastener body comprises a urethane foam slab and a fastener material fixed thereon.

4. A vehicular seat cushion according to claim 3, wherein said urethane foam slab and said fastener material are fixed to each other by lamination.

5. A vehicular seat cushion according to claim 1, wherein said fastener body includes a foam slab layer affixed to said center portion of said seating surface and a fastener material on said upper surface carrying said plurality of fasteners.

6. A vehicular seat cushion according to claim 5, wherein said center portion of said seating surface is a foam which is attached to said foam slab by expansion molding.

7. A vehicular seat cushion according to claim 5, wherein said fastener material is laminated to said foam slab layer.

8. A vehicular seat cushion according to claim 5, wherein a gap is formed between said rising side portions of said seating surface and said fastener body in which a suture is positioned.