Traveling sprinkler guide wheel assembly

Claim 1

A traveling lawn sprinkler comprising a sprinkler body having a water distributing apparatus thereon adapted to be connected with an elongated hose for communicating a supply of water under pressure therewith, a pair of transversely spaced drive wheels on said sprinkler body for driving said sprinkler body along a lawn to be sprinkled on which the hose is deployed to define a path of driving movement, a bracket carried by said sprinkler in a transverse position between said drive wheels for pivotal movement about an upright axis, a horizontally extending shaft carried by said bracket and a pair of symmetrically-shaped wheel halves carried by said shaft for independent rotational movement with respect to one another about the horizontal axis of said shaft and having complementary exterior peripheries shaped to straddle the hose deployed in the lawn to be sprinkled and to follow the path defined thereby so as to cause the sprinkler body to be guided for driving movement along said path, the improvement which comprises: each of said pair of wheel halves comprising an annular hub portion adapted to move over a corresponding half of the hose and a marginal periphery having a plurality of annularly spaced slots therein defining a plurality of circumferentially spaced radially extending portions adapted to roll in contact with the lawn to be sprinkled alongside the corresponding half of the hose, each of said radially extending portions having a tip portion extending axially outwardly therefrom beyond the plane defined by the associated radially extending portion in a direction away from the corresponding hose half so that when the latter constitutes the outer half of a curve in the hose the tip portions will engage beneath the lawn grass and resist upward movement occasioned by the engagement of the other inner wheel half with the curved inside half of the hose.