Soil aerating device

A soil aerating device comprising a hollow cylindrical drum supported for rotation about a horizontally extending axis and for rolling travel along the surface of the ground or turf to be aerated, said drum having an outer wall including a plurality of circumferentially spaced apertures, and a plurality of core-forming tines fixedly mounted on the exterior of said drum and extending radially outwardly therefrom, each of said tines including a pair of generally V-shaped, opposed side walls having an apex located on or near a radial plane extending radially from the drum axis, each of said side walls having a trailing end portion and a leading end portion having, adjacent said apex, a first part which terminates in a cutting edge segment, and a transverse trailing end wall connecting said trailing end portions of said side walls and cooperating with said side walls to define a hollow interior communicating with a respective one of said drum apertures, said trailing end wall having a radially outermost end portion terminating in a cutting edge segment which cooperates with said side wall cutting edge segments to form a generally U-shaped cutting edge having a bight located adjacent said side wall apexes.

A core-forming tine for a soil aerating device including a hollow cylindrical drum supported for rotation about a horizontally extending axis and for rolling travel along the surface of the ground or turf to be aerated and an outer wall including at least one aperture, said tine being adapted to be fixedly mounted on the exterior of the drum and to extend radially outwardly therefrom, said tine including a pair of generally V-shaped opposed and parallel side walls, each of said side walls having an apex, a trailing end portion, and a leading end portion having, adjacent said apex, a first part which terminates in a cutting edge segment, and a transverse trailing end wall connecting said trailing end portions of said side walls and cooperating with said side walls to define a hollow interior adapted to communicate with the drum aperture when said tine is mounted in the drum, said trailing end wall having a radially outermost end portion terminating in a cutting end segment which cooperates with said side wall cutting edge segments to form a generally U-shaped cutting edge having a bight located adjacent said side wall apexes.

A core-forming tine for a soil aerating device including a hollow cylindrical drum supported for rotation about a horizontally extending axis and for rolling travel along the surface of the ground or turf to be aerated, and an outer wall including an aperture, said tine being adapted to be fixedly mounted on the exterior of the drum and to extend radially outwardly therefrom, said tine including a pair of generally V-shaped, opposed side walls each having an apex, each of said side walls having a trailing end portion and a leading end portion having, adjacent said apex, a part which terminates in a cutting edge segment, and a transverse trailing end wall connecting said trailing end portions of said side walls and cooperating with said side walls to define a hollow interior adapted to communicate, when said tine is mounted on the drum, with the drum aperture, said trailing end wall having a outermost end portion terminating in a cutting edge segment which cooperates with said side wall cutting edge segments to form a generally U-shaped cutting edge having a bight located adjacent said side wall apexes.

A core-forming tine for a soil aerating device including a hollow cylindrical drum supported for rotation about a horizontally extending axis and for rolling travel along the surface of the ground or turf to be aerated, and an outer wall including an aperture, said tine being adapted to be fixedly mounted on the exterior of the drum and to extend radially outwardly therefrom, said tine including a pair of generally V-shaped, opposed side walls each having a trailing end portion and a leading end portion including an outer part which terminates in a cutting edge segment, said tine also including a transverse trailing end wall connecting said trailing end portions of said side walls and cooperating with said side walls to define a hollow interior communicating, when said tine is mounted on the drum, with the drum aperture, said trailing end wall having an outermost cutting edge segment which cooperates with said side wall cutting edge segments to form a generally U-shaped cutting edge.