Patent ID: 7175894
Filing Date: 2007-02-13
Classification: B29C,B29D,B29K,B29L,C08J,Y10T

Abstract:
1. A photo-curing hollow structure, comprising: a fluid-injectable internal bag layer; a base-material layer superposed on an external periphery of the internal bag layer and impregnated with a photo-curing resin; and an outer layer superposed on an external periphery of the base-material layer and having transparency, the hollow structure having, in an unused state, flexibility and being stored and kept in a light-tight storage bag or case, the hollow structure when used being taken out of the storage bag or case, wholly expanded by injection of a fluid into the internal bag layer, and formed into a hollow molded structure by direct sunlight or light of an artificial light source passing through the outer layer and curing the base-material layer in an expanded state, wherein the base-material layer comprises a reinforcing fiber layer impregnated with a fluid photo-curing resin, and a net formed into a grid superposed on the reinforcing fiber layer enclosing the reinforcing fiber layer and preventing the photo-curing resin from flowing due to gravity.