Abstract: A lawn aerator with a roller mounted in a rotatable manner in a chassis. The roller is formed by disks that are joined together and have radial recesses in which aerator elements are anchored. The aerator elements have radially projecting, elastic wire spring arms. In an interanchorage region the wire spring arms have a coil made up of a plurality of turns and an extension. The recesses further contain carrier stubs that run in an axis-parallel manner and on which the coils of the spring arms are positioned. The extensions of the spring arms are supported in a form-fitting manner in the stressing direction within the recesses. The extensions of two of the spring arms are combined to give an elastic connecting clip and form a pair of spring arms in each case. In the recesses, in each two carrier stubs are arranged axially opposite one another with a spacing between them such that the coils of the pair of springs can be inserted therebetween and spread apart onto the opposite carrier stubs.

Abstract: In the case of a lawn aerator with a roller which is mounted in a rotatable manner in a chassis, is joined together from individual disks and has elastic radially projecting aerator elements in the form of wire spring arms, the wire spring arms are arranged in pairs in each case and are combined at their inner end by a connecting clip. This connecting clip of the aerator element which is produced by virtue of a single piece of wire being bent causes the two spring arms to spread laterally. In the central section of said spring arms, anchoring means are provided by the individual wire spring being bent correspondingly at opposite locations, said anchoring means allowing anchoring to take place on opposite walls of radial recesses of a pair of carrier disks.