Apparatus for manufacturing reinforced hose

An apparatus for manufacturing a reinforced hose, which comprises:

• an inner tube extruder including:
• a fixed torpedo member for forming a hollow within a hose;
• an inner die for forming an inner tube structure, said torpedo member having an exterior end which projects beyond an exterior end of said inner die, said inner die being positioned about the torpedo member;
• and
• a cylinder formed with a plurality of extrusion passages connected to an inner head whose extended longitudinal axis serves as its longitudinal axis, said inner head being formed with a plurality of extrusion passages through which screws of said extruder are inserted in such a way that said extrusion passages are arranged along the extended longitudinal axis, partition means in said cylinder and inner head laterally separating said extrusion passages from one another;
• an outer tube extruder positioned about the torpedo member, said outlet tube extruder having an outlet positioned downstream from said inner tube extruder so that a gap is formed therebetween, said outer tube extruder outlet including an intermediate die and an outer die for forming an outer tube over a just-extruded inner tube extended, in use, by said inner tube extruder;
• and
• a reinforcing layer-forming device, disposed such as to be concentric with the cylinder of said inner tube extruder, for leading-out reinforcing threads through a gap between said intermediate die and said inner die, said reinforcing layer-forming device being capable of implanting said threads into said inner tube immediately after extrusion of said inner tube.