Patent ID: 7226519

Claim:
A method of fabricating a flexible hose ( 9 ) for a vacuum cleaner by winding at a predetermined angle one long extrusion molding band ( 7 ) provided with a semicircular portion ( 5 ) and an electric wire embedding portion ( 3 ) connected to each other through one connector ( 6 ) and bonding at the same time, the method comprising the steps of: (a) extruding a primary extrusion molding band ( 13 ) having a larger size than a size of a finished state while embedding an electric wire ( 1 ) in the primary extrusion molding band ( 13 ) at a first extruder ( 12 ), the larger size including at least two unequal thicknesses of the semicircular portion; (b) molding the primary extrusion molding band ( 13 ) into a multi-extrusion molding band ( 10 ) having the size of the finished state at a sizing mold ( 14 ); and (c) winding the multi-extrusion molding band ( 10 ) at a predetermined angle at a bonder and bonding a bonding portion ( 2 ) of the electric embedding portion ( 3 ) with a bonding end ( 4 ) of the semicircular portions ( 5 ) positioned on both sides of the multi-extrusion molding band ( 10 ) by using adhesive ( 8 ).