Patent ID: 6095432
Filing Date: 2000-08-01
Classification: B05B

Abstract:
An irrigator angularly movable about an orientation axis, the irrigator comprising:a fixed part;a mobile part rotatably connected to said fixed part;a curved pipe in said mobile part, said curved pipe having an first end substantially coaxial with the orientation axis and a second end being coaxial with a second end axis, said second end including a seat, said seat being coaxial with said second end axis, said second end axis being angularly spaced from the orientation axis;a nozzle removably connectable to said second end of said curved pipe at an angularly fixed position with respect to said mobile part, said nozzle having an outer surface and an inner surface, said inner surface defining a tapering through duct with an input aperture and an output aperture, said duct being coaxial with a duct axis, said duct axis being angularly spaced from said second end axis;a pivoting arm pivotally connected to said mobile part and positioned to be acted on by a jet expelled from said output aperture of said nozzle to bring about angular movements of said mobile part about the axis of orientation, a pivot axis of said pivoting arm substantially coincides with the orientation axis;said mobile part includes a pin with elastic extensions having retaining teeth for retaining said pivoting arm on said mobile part;a retaining cap is mounted on said pin after the pivoting arm, said retaining cap defines seats and said retaining cap is held in place by said retaining teeth which pass into said seats of said retaining cap;a spring is housed between, and reacts between, said retaining cap and said pivoting armsaid fixed part includes an annular seat;said mobile part includes a bell that fits over and around the fixed part, said bell defines ring seats in a form of through slots;an elastic retaining ring is fitted inside said bell and in said annular seat in said fixed part to provide axial locking between said fixed part and said mobile part, said retaining ring including teeth movable into said ring seats of said bell during assembly;said seats of said retaining cap are formed by through slots;said retaining teeth are movable into said seats of said retaining cap during assembly.