초록 ▼

An adjustable part circle sprinkler assembly including a sprinkler body structure and a sprinkler head structure mounted thereon for rotational movement in either direction about an upright axis. An interior water flow path from an inlet in the body to a stream discharging outlet in the head include

An adjustable part circle sprinkler assembly including a sprinkler body structure and a sprinkler head structure mounted thereon for rotational movement in either direction about an upright axis. An interior water flow path from an inlet in the body to a stream discharging outlet in the head includes nozzles directing streams onto a reversible flow directing mechanism for driving an impeller selectively in either direction. The impeller is connected with the head to rotate the same by a gear driven speed reducer and a slip clutch. A part circle pattern control assembly is mounted in an open top of the head closed by a conveniently removable anti-vandal cap structure. The pattern control assembly cooperates with a lever and resilient post reversing mechanism for the reversible flow directing mechanism. Manual movements of the head are accommodated by the slip clutch which protects the gear driven speed reducer. The control assembly serves to automatically return the head to operation within the selected pattern when moved manually therefrom.

대표청구항 ▼

An adjustable part circle sprinkler assembly comprising a sprinkler body structure having inlet means for communication with a source of water under pressure, a sprinkler head structure mounted on said sprinkler body structure for rotational movement about an upright axis either in one direction or

An adjustable part circle sprinkler assembly comprising a sprinkler body structure having inlet means for communication with a source of water under pressure, a sprinkler head structure mounted on said sprinkler body structure for rotational movement about an upright axis either in one direction or an opposite direction, means defining a sealed flow path for water under pressure communicated with said inlet means including outlet means in said sprinkler head structure for discharging the water in an upwardly and outwardly extending stream formation so as to be dispersed in an instantaneous generally segmental ground pattern within a circular ground pattern, said flow path defining means including means defining an annular chamber and reversible flow directing means mounted in said sprinkler body structure for movement between (1) a first position for directing water in said flow path into said chamber in one annular direction and (2) a second position for directing water in said flow path into said chamber in an opposite annular direction, an impeller mounted in said chamber for rotation by the flow of water in said chamber in a direction corresponding to the annular direction of movement of the water into said chamber, a meshing gear speed reduction assembly drivingly connected with said impeller and including a rotary output member rotatable in a direction commensurate with the direction of rotation of said impeller and at a speed commensurately less than the speed of rotation of said impeller, the operation being such that said output member cannot be rotationally moved when said impeller is stationarily inoperable, slip clutch means operatively connecting said rotary output member with said sprinkler had structure for (1) normally operable rotational movement commensurate with the rotational movement of said rotary output member and (2) manual rotational movement in either direction without a commensurate movement of said rotary output member, part circle pattern control means operatively connected with said reversible flow directing means and said sprinkler head structure including first means for adjustably predetermining the limits of the part of the circular ground pattern within which the instantaneous generally segmental ground pattern of the water is moved in opposite directions by corresponding opposite movements of the sprinkler head structure through positions within such limits and second means operable when said sprinkler head structure is manually moved as permitted by said slip clutch means into a position beyond the predetermined limits for enabling the sprinkler head structure to be moved in response to the rotational movement of said impeller back within said limits for continued normal movements in opposite directions within said limits.