Patent ID: 7758802
Filing Date: 2010-07-20
Classification: B29C,B29K,B29L,B60N,D04H

Abstract:
1. A method of manufacturing a reinforcing cloth of a seat pad, the method comprising: fixing a sheet on a mold having an outer shape substantially identical to a shape of the reinforcing cloth and provided with a plurality of air holes communicating an internal space with an outer surface; forming a closed space between the mold and a cover member by covering the sheet fixed on the mold with the cover member; heating the sheet; shaping the heated sheet into a shape following the outer shape of the mold by exhausting air from the closed space through the air holes; and demolding the sheet from the mold after removing the cover member, wherein the sheet is made of a nonwoven fabric containing granular thermoplastic resin and has a back portion, side portions and roundabout portions, the mold has a front surface portion, side surface portions and a rear surface portion, when fixing the sheet on the mold, the back portion of the sheet is placed on the front surface portion of the mold, and the sheet is bent so that the side portions and the roundabout portions of the sheet are placed on the side surface portions and the rear surface portion of the mold, respectively, and when shaping the heated sheet, the cover member is deflated to be sucked by the mold so that the sheet having been heated is deformed to be sucked and comes into close contact with the mold, and wherein a cylindrical portion is provided on the mold, the sheet is provided with a through hole, and when fixing the sheet on the mold, the sheet is put on the mold by inserting the cylindrical portion of the mold to the through hole of the sheet.