Abstract: Disclosed herein is a turf aerating device including a cylindrical drum rotatably supported from a frame for rolling travel over the surface of the turf to be aerated, a plurality of circumferentially-spaced, core-forming elements or tines mounted on the outer periphery of the drum in laterally-spaced, generally parallel rows, and a plurality of guard members mounted on the frame rearwardly of the drum axis. Each of the guard members extends toward the outer periphery of the drum to a location adjacent one of the rows of tines and has a surface located to travel closely adjacent the turf surface and thereby positively restrain the turf from being pulled upwardly by the tines as they are withdrawn from the turf after penetration. The guard members terminate in a generally straight edge closely spaced from the outer periphery of the drum so as to serve as a scraper from removing debris collecting on the drum.

Abstract: Disclosed herein is a soil aerating device which is adapted for connection to a powered vehicle, which includes a first frame rotatably supporting a drum carrying a plurality of core-forming tines adapted to penetrate the ground or turf to be aerated and remove a plug of soil and/or grass as the drum is rolled over the surface of the ground or turf, and which further includes a second frame having forward and rear portions. The first frame is pivotally connected to the rear portion of the second frame for limited relative pivotal movement between the two frames and the forward portion of the second frame is pivotally connected to the vehicle for pivotal movement of the two frames relative to the vehicle between a raised position wherein the drum and tines are disengaged from the ground or turf and a lowered position wherein the drum is in engagement with the ground or turf.