| 摘要 |
A pulsating sprinkler incorporating a three-position trip mechanism facilitating forward/reverse rotation and continuous rotation. The trip mechanism includes a trigger for reversing direction of rotation of the sprinkler, a latch for engaging an impact arm, and a control arm for maintaining the trigger in a fixed position. The trigger, latch and control arm are joined to a common pivot on the sprinkler body. A multiple position diffuser and deflector lever is adjustable for various degrees of diffusion or deflection of a water stream. The sprinkler body is easily removed from the bushing assembly by compression of snap fingers located at a terminal end of the spring body. Further, an O-ring radially seals a space between the bushing assembly and the sprinkler body. An impact arm having two plates with separated vanes extending between the plates or an impact arm with a single plate with two downwardly projecting vanes may be used for ease in molding and increasing manufacturing efficiency.
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