Arc Adjustable Rotary Sprinkler Having Full-Circle Operation
First Claim
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1. An irrigation sprinkler rotor having a full-circle and a part-circle operation mode, the irrigation sprinkler rotor comprising:
- a housing with an inlet for receiving fluid for irrigation;
a riser stem mounted to the housing and movable between a retracted position and an elevated position relative to the housing, the riser stem having a longitudinal axis therealong;
a turret mounted for rotation relative to the riser stem;
a drive mechanism for rotating the turret in one of a full-circle or a part-circle operation;
at least a pair of arc stops disposed in a first operational plane relative to the longitudinal axis and mounted for movement with the nozzle turret;
a shiftable transmission powered by the drive mechanism and operable to oscillate the turret in part-circle operation between the pair of arc stops; and
a trip lever arranged and configured to be shifted in an axial direction from the first operational plane to a second operational plane, the second operational plane spaced an axial distance from the first operational plane;
when the trip lever is positioned in the first operational plane, it is configured to be shifted by the arc stops in order to shift the transmission to oscillate the turret in part-circle operation; and
when the trip lever is positioned in the second operational plane, it is configured so that the arc stops bypass the trip lever for rotation of the turret in full-circle operation.
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Abstract
A rotary sprinkler is provided that includes a housing having a riser assembly and a rotatable nozzle turret on an upper end of the riser assembly. The sprinkler includes an arc setting assembly that enables part-circle operation of the turret and a selector assembly that permits selection of either part-circle or full-circle operation of the nozzle turret where the components of the selector assembly are generally separate from the components of the arc setting assembly.
84 Citations
29 Claims
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1. An irrigation sprinkler rotor having a full-circle and a part-circle operation mode, the irrigation sprinkler rotor comprising:
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a housing with an inlet for receiving fluid for irrigation; a riser stem mounted to the housing and movable between a retracted position and an elevated position relative to the housing, the riser stem having a longitudinal axis therealong; a turret mounted for rotation relative to the riser stem; a drive mechanism for rotating the turret in one of a full-circle or a part-circle operation; at least a pair of arc stops disposed in a first operational plane relative to the longitudinal axis and mounted for movement with the nozzle turret; a shiftable transmission powered by the drive mechanism and operable to oscillate the turret in part-circle operation between the pair of arc stops; and a trip lever arranged and configured to be shifted in an axial direction from the first operational plane to a second operational plane, the second operational plane spaced an axial distance from the first operational plane; when the trip lever is positioned in the first operational plane, it is configured to be shifted by the arc stops in order to shift the transmission to oscillate the turret in part-circle operation; and when the trip lever is positioned in the second operational plane, it is configured so that the arc stops bypass the trip lever for rotation of the turret in full-circle operation. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An irrigation sprinkler rotor selectable between full-circle rotation and part-circle oscillation modes, the irrigation sprinkler rotor comprising:
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a housing body with a longitudinal axis therethrough; a nozzle turret mounted for rotation relative to the housing body and having at least one nozzle therein for projecting a fluid spray outwardly therefrom; at least a pair of arc adjustment stops for defining an arc of rotation of the nozzle turret relative to the housing body and between the arc adjustment stops when the sprinkler rotor is in the part-circle oscillation mode; the arc adjustment stops traveling along a path relative to the housing body during rotation of the nozzle turret; a drive mechanism for rotating the nozzle turret; a shiftable transmission coupled to the drive mechanism and operable to oscillate the nozzle turret in the part-circle oscillation mode between the arc adjustment stops; a trip arm coupled to the transmission and configured for shifting between a first operational position where at least a portion of the trip arm is positioned within the path of the arc adjustment stops to be engaged by the arc adjustment stops for shifting the transmission in the part-circle oscillation mode, and a second operational position spaced a distance from the first operational position where the at least a portion of the trip arm is positioned outside of the path of the arc adjustment stops so that the arc adjustment stops bypass the trip arm during rotation of the nozzle turret for operation in the full-circle rotation mode. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. An irrigation sprinkler rotor selectable between full-circle rotation and part-circle oscillation modes, the irrigation sprinkler rotor comprising:
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a housing body with a longitudinal axis therethrough; a nozzle turret mounted for rotation relative to the housing body and having at least one nozzle therein for projecting a fluid spray outwardly therefrom; at least a pair of arc adjustment stops for defining an arc of rotation of the nozzle turret relative to the housing body and between the arc adjustment stops when the sprinkler rotor is in the part-circle oscillation mode; a drive mechanism for rotating the nozzle turret; a shiftable transmission coupled to the drive mechanism and operable to oscillate the nozzle turret in the part-circle oscillation mode between the arc adjustment stops; a trip arm coupled to the transmission and configured for shifting between a first operational position where at least a portion of the trip lever is positioned to be engaged by the arc adjustment stops for shifting the transmission in the part-circle oscillation mode and a second operational position where the trip arm is positioned so that the arc adjustment stops bypass the trip arm during rotation of the nozzle turret for operation in the full-circle rotation mode; and a switching mechanism for effecting the switching of the trip arm from the first to the second operational position, the switching assembly including an actuator mounted to the turret that is coupled to the trip arm to effect the switching thereof and the actuator is decoupled from the drive mechanism that rotates the turret. - View Dependent Claims (25, 26, 27, 28, 29)
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Specification