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A step-by-step rotary sprinkler head comprising a stationary annular housing assembly, an annular mounting member supported within the upper end portion of the stationary annular housing for rotational movement about a generally vertically extending axis generally coextensive with the annular axis o

A step-by-step rotary sprinkler head comprising a stationary annular housing assembly, an annular mounting member supported within the upper end portion of the stationary annular housing for rotational movement about a generally vertically extending axis generally coextensive with the annular axis of the housing assembly. The mounting member has three sets of equally annularly spaced holes extending vertically therethrough. An annular brake member has a set of equally annularly spaced stub shafts extending vertically upwardly therefrom which slidably engage within one set of holes. The annular brake member has a downwardly facing annular brake surface thereon which engages a fixed upwardly facing annular brake surface provided by the housing assembly. A sprinkler body assembly is carried by the mounting member and is fixedly secured thereto by bolts extending therethrough and threadedly engaged within another one of the sets of holes. A series of coil springs is mounted within a third one of the sets of holes to resiliently urge the interengaging brake surfaces together with a constant spring force.

대표청구항 ▼

A step-by-step rotary sprinkler head comprising: a stationary annular housing assembly having a lower portion adapted to be fixedly connected in communicating relation with respect to a source of water under pressure, an annular mounting member supported within the upper end portion of said stationa

A step-by-step rotary sprinkler head comprising: a stationary annular housing assembly having a lower portion adapted to be fixedly connected in communicating relation with respect to a source of water under pressure, an annular mounting member supported within the upper end portion of said stationary annular housing for rotational movement about a generally vertically extending axis generally coextensive with the annular axis of said housing assembly, said mounting member having a first set of at least three equally annularly spaced threaded stud receiving holes extending vertically therein, a second set of at least three equally annularly spaced stub shaft receiving holes extending vertically therein and a third set of at least three equally annularly spaced coil spring receiving holes extending vertically therein, an annular brake member having at least three equally annularly spaced stub shafts extending vertically upwardly therefrom and slidably mounted within said second set of holes, said annular brake member having a downwardly facing annular brake surface thereon, means in the upper portion of said stationary housing assembly providing a fixed upwardly facing annular brake surface disposed in engaged relation with said downwardly facing annular brake surface, a sprinkler body assembly carried by said mounting member and fixedly secured thereto by bolts extending therethrough and threadedly engaged within said first set of holes, at least three equally annularly spaced coil springs mounted within said third set of holes having their lower ends engaged with said annular brake member so as to resiliently urge the downwardly facing brake surface thereof into engaged relation with said upwardly facing brake surface with a constant spring force, and means for communicating said sprinkler body assembly with said stationary housing assembly in fluidtight communicating relation therewith.