Method of making a seat

• US 4,995,926 A
• Filed: 07/19/1989
• Issued: 02/26/1991
• Est. Priority Date: 03/18/1988
• Status: Expired due to Fees

• Current Assignee: Tachi-S Company Limited
• Original Assignee: Tachi-S Company Limited
• Inventors: Urai, Muneharu
• Primary Examiner(s): Dawson, Robert A.
• Application Number:
  US07/383,232
• Time in Patent Office: 587 Days
• Field of Search: 5/448, 5/461, 5/471, 5/502, 156/78, 156/79, 156/155, 156/245, 156/309.6, 156/321, 156/289, 264/46.5, 264/46.6, 264/321, 297/DIG. 1
• US Class Current: 156/78
• CPC Class Codes: A47C 7/18 having foamed material included in cushioning part foamed material mattresses A47C27/14
• CPC Class Codes: Y10S 297/01 Foam

Abstract

In a seat for use in an automotive vehicle, a trim cover is bonded at least at its seat base partly only to a molded polyurethane foam functioning as a seat cushion member and is not substantially bonded at its flap and side parts to the molded polyurethane foam, so that an internal defect can be easily repaired by merely stripping off a corresponding portion of the trim cover. The trim cover may consist of a cover member only, or a filler pad may be only locally bonded to the cover member. The molded polyurethane foam may be formed by foaming and molding a polyurethane resin solution or may be supplied in the form of a slab.

Claims

1. A method of forming a seat comprising

(a) setting at rim cover in a molding cavity of a foaming mold;

(b) disposing a film of an adhesive material on an area of the trim cover corresponding to a desired bonded area;

(c) injecting, foaming and molding a polyurethane resin solution onto the trim cover in the mold; and

(d) fusing the film of adhesive material by the temperature of the mold so as to be melted into the molded polyurethane and the trim cover thereby forming a bonded area which is permeable to air.

2. A method according to claim 1 wherein a sheet of non-adhesive material id disposed on the remaining area of the trim cover and is removed after said polyurethane is foamed and molded.