Patent ID: 6863133

Claim:
A lawn aerator with a roller mounted in a rotatable manner in a chassis, wherein the roller is formed by a plurality of disks ( 10 , 12 ) that are joined together; the disks ( 10 , 12 ) have radial recesses ( 30 ) in which aerator elements ( 22 ) are anchored; the aerator elements ( 22 ) comprise radially projecting, elastic wire spring arms ( 24 ); the wire spring arms ( 24 ) have an inner anchorage region with a coil ( 26 ), comprising a plurality of turns, and an extension; the recesses ( 30 ) contain carrier stubs ( 32 ) which run in an axis-parallel manner and on which the coils ( 26 ) of the spring arms are positioned; the extensions ( 28 ) are supported in a form-fitting manner in the stressing direction within the recesses ( 30 ); the lawn aerator comprising the following features: the extensions of two spring arms ( 24 ) are combined to give an elastic connecting clip and form a pair of spring arms in each case; in the recesses ( 30 ), in each case two carrier stubs ( 32 ) are arranged axially opposite one another and spaced apart so that the coils ( 26 ) of a pair of springs can be inserted therebetween and spread apart onto the opposite carrier stubs ( 32 ).