Oscillating movement lawn sprinkler - uses water inlet via hollow shaft carrying reduction gear and turbine

摘要

The sprinkler has spray apertures executing a reversing oscillating movement, effected by a fluid turbine driven via a reduction gear. The apertures are located in a swivel housing surrounding the turbine, and located between two sections of a shackle stand. The reduction gear (45) is located within the housing (27). The legs (25) serving as stand are inserted into the sections (11, 12). The rear section (12) has a bearing part (26), acting with a low-load bearing part (28) of the housing. Gearing and turbine (37) are carried on a shaft (18), which projects into the housing through the front section (11), and which acts as a pivot axis. The shaft has a central hollow, which acts as water inlet (16) into the housing. The pivot movement and stops (87, 88) actuate an arrangement (69) to reverse the pivot movement.