Aerator

Abstract

An aerator includes a frame supported on a pair of forward wheels and a pair of rearward wheels. An aerator head is mounted on a pivot frame on the forward end of the aerator frame, the pivot frame mounted to move the aerator head from a disengaged position above the ground, downwardly to an engaged position wherein tines on the aerator head work the soil. The pivot frame includes a forwardly projecting arm upon which the aerator head is mounted, and a rearwardly projecting arm upon which the forward wheels of the frame are mounted, such that movement of the pivot frame will engage either the forward wheels of the frame or the aerator head. An hydraulic cylinder is mounted between the frame and the pivot frame to selectively move the pivot frame to engage the aerator head or the forward wheels with the ground. A weight transfer apparatus is mounted to the aerator frame and includes a movable weight attached to a swing arm so as to pivot between a first position forward of the aerator head, and a second position rearward of the aerator head, so as to shift weight relative to the aerator head. A link connects the swing arm to the pivot frame, such that movement of the pivot frame to engage the aerator head shifts the weight to the forward position, and movement of the pivot frame to disengage the aerator head shifts the movable weight to the rearward position.

Dependencies are inferred from the claim text.