Auf unterschiedlich grosse Beregnungsflaechen einstellbarer Regner

摘要

A lawn sprinkler includes a housing having a turbine which, for example, may be driven by the water supplied thereto for rotating a crank eccentric for the purpose of oscillating a tubular nozzle assembly about its own longitudinal axis. The nozzle assembly includes a guide sleeve or tube having a slot on its periphery which extends longitudinally and which is covered on its exterior by a nozzle body defining a plurality of nozzle passages oriented at divergent angles on each side of a central vertical nozzle passage. A regulating sleeve is positioned inside the guide sleeve and has a threaded connection with the guide sleeve at one end. It includes a plurality of nozzle pattern selection axes or generatrices which include one or more slots arranged in longitudinal patterns at spaced locations around the periphery. The regulating sleeve includes a knob portion extending outwardly to one side of the sprinkler which may be engaged by an operator to selectively position one of the generatrices in alignment with the longitudinal slot of the outer guide sleeve. The guide sleeve slot in turn communicates with the passages of the nozzle body. The longitudinal slot patterns which are defined along the generatrices of the regulating sleeve are advantageously spaced such that the sprinkle pattern of operation of the device may be controlled for example to provide for a full sprinkling pattern or a reduced pattern, as well as a pattern on each side or on only one side, or to provide for sprinkling only on the sides and not in a central area.