Seat with foamed plastic padding and process for its manufacture

• US 5,248,185 A
• Filed: 12/13/1989
• Issued: 09/28/1993
• Est. Priority Date: 06/02/1987
• Status: Expired due to Fees

• Current Assignee: Schaumstoffwerk Greiner GmbH
• Original Assignee: Schaumstoffwerk Greiner GmbH
• Inventors: Eder, Bernhard, Moseneder, Johann, Weingartner, Rudolf
• Primary Examiner(s): ASCHENBRENNER, PETER
• Application Number:
  US07/458,733
• Time in Patent Office: 1,385 Days
• Field of Search: 297/452, 297/DIG. 1, 297/DIG. 5, 5/481, 5/471
• US Class Current: 297/452.58
• CPC Class Codes: B60N 2/00 Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles railway seats B61D33/00; cycle seats B62J1/00; aircraft seats B64D11/06, B64D25/04, B64D25/10
• CPC Class Codes: B60N 2/242 Bus seats
• CPC Class Codes: B60N 2/58 Seat coverings
• CPC Class Codes: B60N 2/70 Upholstery springs ; Upholstery
• CPC Class Codes: B64D 11/0647 Seats characterised by special upholstery or cushioning features
• CPC Class Codes: B64D 11/0649 Seats characterised by special features for reducing weight
• CPC Class Codes: Y02T 50/40 Weight reduction
• CPC Class Codes: Y10S 297/01 Foam
• CPC Class Codes: Y10S 297/05 Fireproof

Abstract

A seat (1), in particular for vehicles, with foamed plastic padding (4, 5), has a supporting body (7) made of an open-cell elastic foamed plastic having a first specific gravity. A flame-retardant layer (12) made of an open-cell elastic foamed plastic having a second specific gravity different from the first and/or an upholstery material (14) is provided. An intermediate layer (9) is arranged between the supporting body (7) and the flame-retardant layer (12) and/or the upholstery material (14). The intermediate layer is non-flamable, and composed of a lattice or mesh of high temperature resistant fiber or threads, and/or liquid repellent. The supporting body (7) can be foamed on to the intermediate layer (9). A process for manufacturing the seat (1) is also described.

Claims

1. Fire-resistant seating, such as aircraft seats, which comprises at least a soft, supporting material and a cover, between which there is a fire-resistant intermediate layer, which is a combination of a layer of polyurethane foam which has been rendered fire-resistant, having a thickness between 1 mm to 15 mm, and a fiberglass fabric, characterized in that the fire-resistant intermediate layer is a combination of a layer of fiberglass fabric which is firmly attached to the soft supporting material, and a layer of polyurethane foam, which has been rendered fire-resistant and a firmly attached both to the layer of fiberglass fabric and to the cover.

2. Seating according to claim 1, characterized in that the fiberglass fabric has a weight per unit surface area of 50 to 300 g/m².

3. Seating according to claim 1 provided with a fire-resistant cover.

4. A seat, in particular for vehicles, with a padding of foamed plastics comprising:

a supporting body made from an open-cell elastic plastic foam with a first specific gravity;

a flame-resistant upholstery material;

said supporting body connected to said upholstering material with a flame-retardant layer made of an open-cell elastic foamed plastic with a second specific gravity different from the first;

a non-flammable intermediate layer between said supporting body and said flame-retardant layer, which may be formed by an upholstery material; and

said intermediate layer is formed from a lattice or mesh or high temperature resistant fibers or threads.